Yes for beer, but haven't used the technique for mead yet. Works fine though...I put the chips in a couple of ounces of bourbon for a couple of weeks, then when I am ready to use, I spread the chips out on a cookie tray and let them air dry for a bit. They go in a muslin or nylon sack and right into the carboy. Be prepared to taste and pull when necessary, and I wouldn't go more than an ounce of chips for a full size batch...comes out plenty oakey, and is very easy to over-oak with more than that on board...
BTW, the left over bourbon is quite oakey by itself, and it has occurred to me that you could use this as an extract and add directly to a batch, titrated to taste...it is also useful as a test to see how a given mead/beer would be if it were oaked...